A body covers half of its journey with a speed of 40m/s and the other half with a speed of 60 m/s. What is the average speed of the body during its whole journey
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hey this is answer of the question
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From this, you have that the total time for the trip is L/40+L/60 and the total distance being 2L, so just divide the distance by the time to find velocity. All of the answers so far are wrong; it's not 50 m/s. It would be 50 if half the time was at 40 and the other half at 60, but it's not time, its distance.
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